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e45bc069f0
- win32 calls to Widgetset.ThemesActive redirected to ThemeServices git-svn-id: trunk@11161 -
1263 lines
63 KiB
ObjectPascal
1263 lines
63 KiB
ObjectPascal
{******************************************************************************}
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{ }
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{ Visual Styles (Themes) API interface Unit for Object Pascal }
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{ }
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{ Portions created by Microsoft are Copyright (C) 1995-2001 Microsoft }
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{ Corporation. All Rights Reserved. }
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{ }
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{ The original file is: uxtheme.h, released June 2001. The original Pascal }
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{ code is: UxTheme.pas, released July 2001. The initial developer of the }
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{ Pascal code is Marcel van Brakel (brakelm@chello.nl). }
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{ }
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{ Portions created by Marcel van Brakel are Copyright (C) 1999-2001 }
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{ Marcel van Brakel. All Rights Reserved. }
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{ }
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{ Portions created by Mike Lischke are Copyright (C) 1999-2002 }
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{ Mike Lischke. All Rights Reserved. }
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{ }
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{ Obtained through: Joint Endeavour of Delphi Innovators (Project JEDI) }
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{ }
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{ You may retrieve the latest version of this file at the Project JEDI home }
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{ page, located at http://delphi-jedi.org or my personal homepage located at }
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{ http://members.chello.nl/m.vanbrakel2 }
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{ }
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{ The contents of this file are used with permission, subject to the Mozilla }
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{ Public License Version 1.1 (the "License"); you may not use this file except }
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{ in compliance with the License. You may obtain a copy of the License at }
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{ http://www.mozilla.org/MPL/MPL-1.1.html }
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{ }
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{ Software distributed under the License is distributed on an "AS IS" basis, }
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{ WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for }
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{ the specific language governing rights and limitations under the License. }
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{ }
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{ Alternatively, the contents of this file may be used under the terms of the }
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{ GNU Lesser General Public License (the "LGPL License"), in which case the }
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{ provisions of the LGPL License are applicable instead of those above. }
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{ If you wish to allow use of your version of this file only under the terms }
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{ of the LGPL License and not to allow others to use your version of this file }
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{ under the MPL, indicate your decision by deleting the provisions above and }
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{ replace them with the notice and other provisions required by the LGPL }
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{ License. If you do not delete the provisions above, a recipient may use }
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{ your version of this file under either the MPL or the LGPL License. }
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{ }
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{ For more information about the LGPL: http://www.gnu.org/copyleft/lesser.html }
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{ }
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{******************************************************************************}
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unit Win32UxTheme;
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{$mode objfpc}{$H+}
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{$HPPEMIT ''}
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{$HPPEMIT '#include "uxtheme.h"'}
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{$HPPEMIT ''}
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interface
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uses
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Windows;
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procedure FreeThemeLibrary;
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function InitThemeLibrary: Boolean;
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function UseThemes: Boolean;
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const
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WM_THEMECHANGED = $031A;
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type
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HTHEME = THANDLE; // handle to a section of theme data for class
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{$EXTERNALSYM HTHEME}
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//----------------------------------------------------------------------------------------------------------------------
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// NOTE: PartId's and StateId's used in the theme API are defined in the
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// hdr file <tmschema.h> using the TM_PART and TM_STATE macros. For
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// example, "TM_PART(BP, PUSHBUTTON)" defines the PartId "BP_PUSHBUTTON".
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//----------------------------------------------------------------------------------------------------------------------
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// OpenThemeData() - Open the theme data for the specified HWND and
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// semi-colon separated list of class names.
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//
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// OpenThemeData() will try each class name, one at
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// a time, and use the first matching theme info
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// found. If a match is found, a theme handle
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// to the data is returned. If no match is found,
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// a "NULL" handle is returned.
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//
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// When the window is destroyed or a WM_THEMECHANGED
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// msg is received, "CloseThemeData()" should be
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// called to close the theme handle.
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//
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// hwnd - window handle of the control/window to be themed
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//
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// pszClassList - class name (or list of names) to match to theme data
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// section. if the list contains more than one name,
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// the names are tested one at a time for a match.
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// If a match is found, OpenThemeData() returns a
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// theme handle associated with the matching class.
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// This param is a list (instead of just a single
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// class name) to provide the class an opportunity
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// to get the "best" match between the class and
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// the current theme. For example, a button might
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// pass L"OkButton, Button" if its ID=ID_OK. If
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// the current theme has an entry for OkButton,
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// that will be used. Otherwise, we fall back on
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// the normal Button entry.
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//----------------------------------------------------------------------------------------------------------------------
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var
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OpenThemeData: function(hwnd: HWND; pszClassList: LPCWSTR): HTHEME; stdcall;
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{$EXTERNALSYM OpenThemeData}
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//----------------------------------------------------------------------------------------------------------------------
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// CloseTHemeData() - closes the theme data handle. This should be done
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// when the window being themed is destroyed or
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// whenever a WM_THEMECHANGED msg is received
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// (followed by an attempt to create a new Theme data
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// handle).
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//
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// hTheme - open theme data handle (returned from prior call
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// to OpenThemeData() API).
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//----------------------------------------------------------------------------------------------------------------------
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var
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CloseThemeData: function(hTheme: HTHEME): HRESULT; stdcall;
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{$EXTERNALSYM CloseThemeData}
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//----------------------------------------------------------------------------------------------------------------------
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// functions for basic drawing support
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//----------------------------------------------------------------------------------------------------------------------
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// The following methods are the theme-aware drawing services.
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// Controls/Windows are defined in drawable "parts" by their author: a
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// parent part and 0 or more child parts. Each of the parts can be
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// described in "states" (ex: disabled, hot, pressed).
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//----------------------------------------------------------------------------------------------------------------------
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// For the list of all themed classes and the definition of all
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// parts and states, see the file "tmschmea.h".
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//----------------------------------------------------------------------------------------------------------------------
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// Each of the below methods takes a "iPartId" param to specify the
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// part and a "iStateId" to specify the state of the part.
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// "iStateId=0" refers to the root part. "iPartId" = "0" refers to
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// the root class.
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//----------------------------------------------------------------------------------------------------------------------
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// Note: draw operations are always scaled to fit (and not to exceed)
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// the specified "Rect".
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//----------------------------------------------------------------------------------------------------------------------
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//----------------------------------------------------------------------------------------------------------------------
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// DrawThemeBackground()
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// - draws the theme-specified border and fill for
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// the "iPartId" and "iStateId". This could be
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// based on a bitmap file, a border and fill, or
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// other image description.
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//
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// hTheme - theme data handle
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// hdc - HDC to draw into
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// iPartId - part number to draw
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// iStateId - state number (of the part) to draw
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// pRect - defines the size/location of the part
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// pClipRect - optional clipping rect (don't draw outside it)
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//----------------------------------------------------------------------------------------------------------------------
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var
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DrawThemeBackground: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId: Integer; const pRect: TRect;
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pClipRect: PRECT): HRESULT; stdcall;
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{$EXTERNALSYM DrawThemeBackground}
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//----------------------------------------------------------------------------------------------------------------------
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//----- DrawThemeText() flags ----
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const
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DTT_GRAYED = $1; // draw a grayed-out string
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{$EXTERNALSYM DTT_GRAYED}
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//----------------------------------------------------------------------------------------------------------------------
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// DrawThemeText() - draws the text using the theme-specified
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// color and font for the "iPartId" and
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// "iStateId".
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//
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// hTheme - theme data handle
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// hdc - HDC to draw into
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// iPartId - part number to draw
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// iStateId - state number (of the part) to draw
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// pszText - actual text to draw
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// dwCharCount - number of chars to draw (-1 for all)
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// dwTextFlags - same as DrawText() "uFormat" param
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// dwTextFlags2 - additional drawing options
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// pRect - defines the size/location of the part
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//----------------------------------------------------------------------------------------------------------------------
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var
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DrawThemeText: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId: Integer; pszText: LPCWSTR; iCharCount: Integer;
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dwTextFlags, dwTextFlags2: DWORD; const pRect: TRect): HRESULT; stdcall;
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{$EXTERNALSYM DrawThemeText}
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//----------------------------------------------------------------------------------------------------------------------
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// GetThemeBackgroundContentRect()
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// - gets the size of the content for the theme-defined
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// background. This is usually the area inside
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// the borders or Margins.
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//
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// hTheme - theme data handle
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// hdc - (optional) device content to be used for drawing
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// iPartId - part number to draw
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// iStateId - state number (of the part) to draw
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// pBoundingRect - the outer RECT of the part being drawn
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// pContentRect - RECT to receive the content area
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//----------------------------------------------------------------------------------------------------------------------
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var
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GetThemeBackgroundContentRect: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId: Integer;
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const pBoundingRect: TRect; pContentRect: PRECT): HRESULT; stdcall;
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{$EXTERNALSYM GetThemeBackgroundContentRect}
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//----------------------------------------------------------------------------------------------------------------------
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// GetThemeBackgroundExtent() - calculates the size/location of the theme-
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// specified background based on the
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// "pContentRect".
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//
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// hTheme - theme data handle
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// hdc - (optional) device content to be used for drawing
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// iPartId - part number to draw
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// iStateId - state number (of the part) to draw
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// pContentRect - RECT that defines the content area
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// pBoundingRect - RECT to receive the overall size/location of part
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//----------------------------------------------------------------------------------------------------------------------
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var
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GetThemeBackgroundExtent: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId: Integer; const pContentRect: TRect;
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var pExtentRect: TRect): HRESULT; stdcall;
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{$EXTERNALSYM GetThemeBackgroundExtent}
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//----------------------------------------------------------------------------------------------------------------------
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type
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THEMESIZE = (
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TS_MIN, // minimum size
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TS_TRUE, // size without stretching
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TS_DRAW // size that theme mgr will use to draw part
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);
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{$EXTERNALSYM THEMESIZE}
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TThemeSize = THEMESIZE;
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//----------------------------------------------------------------------------------------------------------------------
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// GetThemePartSize() - returns the specified size of the theme part
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//
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// hTheme - theme data handle
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// hdc - HDC to select font into & measure against
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// iPartId - part number to retrieve size for
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// iStateId - state number (of the part)
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// prc - (optional) rect for part drawing destination
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// eSize - the type of size to be retreived
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// psz - receives the specified size of the part
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//----------------------------------------------------------------------------------------------------------------------
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var
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GetThemePartSize: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId: Integer; prc: PRECT; eSize: THEMESIZE;
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var psz: TSize): HRESULT; stdcall;
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{$EXTERNALSYM GetThemePartSize}
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//----------------------------------------------------------------------------------------------------------------------
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// GetThemeTextExtent() - calculates the size/location of the specified
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// text when rendered in the Theme Font.
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//
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// hTheme - theme data handle
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// hdc - HDC to select font & measure into
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// iPartId - part number to draw
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// iStateId - state number (of the part)
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// pszText - the text to be measured
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// dwCharCount - number of chars to draw (-1 for all)
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// dwTextFlags - same as DrawText() "uFormat" param
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// pszBoundingRect - optional: to control layout of text
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// pszExtentRect - receives the RECT for text size/location
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//----------------------------------------------------------------------------------------------------------------------
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var
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GetThemeTextExtent: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId: Integer; pszText: LPCWSTR;
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iCharCount: Integer; dwTextFlags: DWORD; pBoundingRect: PRECT; var pExtentRect: TRect): HRESULT; stdcall;
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{$EXTERNALSYM GetThemeTextExtent}
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//----------------------------------------------------------------------------------------------------------------------
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// GetThemeTextMetrics()
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// - returns info about the theme-specified font
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// for the part/state passed in.
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//
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// hTheme - theme data handle
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// hdc - optional: HDC for screen context
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// iPartId - part number to draw
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// iStateId - state number (of the part)
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// ptm - receives the font info
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//----------------------------------------------------------------------------------------------------------------------
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var
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GetThemeTextMetrics: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId: Integer;
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var ptm: TEXTMETRIC): HRESULT; stdcall;
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{$EXTERNALSYM GetThemeTextMetrics}
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//----------------------------------------------------------------------------------------------------------------------
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// GetThemeBackgroundRegion()
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// - computes the region for a regular or partially
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// transparent theme-specified background that is
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// bound by the specified "pRect".
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// If the rectangle is empty, sets the HRGN to NULL
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// and return S_FALSE.
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//
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// hTheme - theme data handle
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// hdc - optional HDC to draw into (DPI scaling)
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// iPartId - part number to draw
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// iStateId - state number (of the part)
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// pRect - the RECT used to draw the part
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// pRegion - receives handle to calculated region
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//----------------------------------------------------------------------------------------------------------------------
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var
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GetThemeBackgroundRegion: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId: Integer; const pRect: TRect;
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var pRegion: HRGN): HRESULT; stdcall;
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{$EXTERNALSYM GetThemeBackgroundRegion}
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//----------------------------------------------------------------------------------------------------------------------
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//----- HitTestThemeBackground, HitTestThemeBackgroundRegion flags ----
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// Theme background segment hit test flag (default). possible return values are:
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// HTCLIENT: hit test succeeded in the middle background segment
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// HTTOP, HTLEFT, HTTOPLEFT, etc: // hit test succeeded in the the respective theme background segment.
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const
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HTTB_BACKGROUNDSEG = $0000;
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{$EXTERNALSYM HTTB_BACKGROUNDSEG}
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// Fixed border hit test option. possible return values are:
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// HTCLIENT: hit test succeeded in the middle background segment
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// HTBORDER: hit test succeeded in any other background segment
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HTTB_FIXEDBORDER = $0002; // Return code may be either HTCLIENT or HTBORDER.
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{$EXTERNALSYM HTTB_FIXEDBORDER}
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// Caption hit test option. Possible return values are:
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// HTCAPTION: hit test succeeded in the top, top left, or top right background segments
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// HTNOWHERE or another return code, depending on absence or presence of accompanying flags, resp.
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HTTB_CAPTION = $0004;
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{$EXTERNALSYM HTTB_CAPTION}
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// Resizing border hit test flags. Possible return values are:
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// HTCLIENT: hit test succeeded in middle background segment
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// HTTOP, HTTOPLEFT, HTLEFT, HTRIGHT, etc: hit test succeeded in the respective system resizing zone
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// HTBORDER: hit test failed in middle segment and resizing zones, but succeeded in a background border segment
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HTTB_RESIZINGBORDER_LEFT = $0010; // Hit test left resizing border,
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{$EXTERNALSYM HTTB_RESIZINGBORDER_LEFT}
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HTTB_RESIZINGBORDER_TOP = $0020; // Hit test top resizing border
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{$EXTERNALSYM HTTB_RESIZINGBORDER_TOP}
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HTTB_RESIZINGBORDER_RIGHT = $0040; // Hit test right resizing border
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{$EXTERNALSYM HTTB_RESIZINGBORDER_RIGHT}
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HTTB_RESIZINGBORDER_BOTTOM = $0080; // Hit test bottom resizing border
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{$EXTERNALSYM HTTB_RESIZINGBORDER_BOTTOM}
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HTTB_RESIZINGBORDER = (HTTB_RESIZINGBORDER_LEFT or HTTB_RESIZINGBORDER_TOP or
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HTTB_RESIZINGBORDER_RIGHT or HTTB_RESIZINGBORDER_BOTTOM);
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{$EXTERNALSYM HTTB_RESIZINGBORDER}
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// Resizing border is specified as a template, not just window edges.
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// This option is mutually exclusive with HTTB_SYSTEMSIZINGWIDTH; HTTB_SIZINGTEMPLATE takes precedence
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HTTB_SIZINGTEMPLATE = $0100;
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{$EXTERNALSYM HTTB_SIZINGTEMPLATE}
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// Use system resizing border width rather than theme content margins.
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// This option is mutually exclusive with HTTB_SIZINGTEMPLATE, which takes precedence.
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HTTB_SYSTEMSIZINGMARGINS = $0200;
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{$EXTERNALSYM HTTB_SYSTEMSIZINGMARGINS}
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//----------------------------------------------------------------------------------------------------------------------
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// HitTestThemeBackground()
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// - returns a HitTestCode (a subset of the values
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// returned by WM_NCHITTEST) for the point "ptTest"
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// within the theme-specified background
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// (bound by pRect). "pRect" and "ptTest" should
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// both be in the same coordinate system
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// (client, screen, etc).
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//
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// hTheme - theme data handle
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// hdc - HDC to draw into
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// iPartId - part number to test against
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// iStateId - state number (of the part)
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// pRect - the RECT used to draw the part
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// hrgn - optional region to use; must be in same coordinates as
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// - pRect and pTest.
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// ptTest - the hit point to be tested
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// dwOptions - HTTB_xxx constants
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// pwHitTestCode - receives the returned hit test code - one of:
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//
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// HTNOWHERE, HTLEFT, HTTOPLEFT, HTBOTTOMLEFT,
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// HTRIGHT, HTTOPRIGHT, HTBOTTOMRIGHT,
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// HTTOP, HTBOTTOM, HTCLIENT
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//----------------------------------------------------------------------------------------------------------------------
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var
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HitTestThemeBackground: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId: Integer; dwOptions: DWORD;
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const pRect: TRect; hrgn: HRGN; ptTest: TPoint; var pwHitTestCode: WORD): HRESULT; stdcall;
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{$EXTERNALSYM HitTestThemeBackground}
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//----------------------------------------------------------------------------------------------------------------------
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// DrawThemeEdge() - Similar to the DrawEdge() API, but uses part colors
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// and is high-DPI aware
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// hTheme - theme data handle
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// hdc - HDC to draw into
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// iPartId - part number to draw
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// iStateId - state number of part
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// pDestRect - the RECT used to draw the line(s)
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// uEdge - Same as DrawEdge() API
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// uFlags - Same as DrawEdge() API
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// pContentRect - Receives the interior rect if (uFlags & BF_ADJUST)
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//----------------------------------------------------------------------------------------------------------------------
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var
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DrawThemeEdge: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId: Integer; const pDestRect: TRect; uEdge,
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uFlags: UINT; pContentRect: PRECT): HRESULT; stdcall;
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{$EXTERNALSYM DrawThemeEdge}
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//----------------------------------------------------------------------------------------------------------------------
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// DrawThemeIcon() - draws an image within an imagelist based on
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// a (possible) theme-defined effect.
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//
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// hTheme - theme data handle
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// hdc - HDC to draw into
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// iPartId - part number to draw
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// iStateId - state number of part
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// pRect - the RECT to draw the image within
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// himl - handle to IMAGELIST
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// iImageIndex - index into IMAGELIST (which icon to draw)
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//----------------------------------------------------------------------------------------------------------------------
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var
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DrawThemeIcon: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId: Integer; const pRect: TRect; himl: HIMAGELIST;
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iImageIndex: Integer): HRESULT; stdcall;
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{$EXTERNALSYM DrawThemeIcon}
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//----------------------------------------------------------------------------------------------------------------------
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// IsThemePartDefined() - returns TRUE if the theme has defined parameters
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// for the specified "iPartId" and "iStateId".
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//
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// hTheme - theme data handle
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// iPartId - part number to find definition for
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// iStateId - state number of part
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//----------------------------------------------------------------------------------------------------------------------
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var
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IsThemePartDefined: function(hTheme: HTHEME; iPartId, iStateId: Integer): BOOL; stdcall;
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{$EXTERNALSYM IsThemePartDefined}
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//----------------------------------------------------------------------------------------------------------------------
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// IsThemeBackgroundPartiallyTransparent()
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// - returns TRUE if the theme specified background for
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// the part/state has transparent pieces or
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// alpha-blended pieces.
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//
|
|
// hTheme - theme data handle
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
IsThemeBackgroundPartiallyTransparent: function(hTheme: HTHEME; iPartId, iStateId: Integer): BOOL; stdcall;
|
|
{$EXTERNALSYM IsThemeBackgroundPartiallyTransparent}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// lower-level theme information services
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// The following methods are getter routines for each of the Theme Data types.
|
|
// Controls/Windows are defined in drawable "parts" by their author: a
|
|
// parent part and 0 or more child parts. Each of the parts can be
|
|
// described in "states" (ex: disabled, hot, pressed).
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// Each of the below methods takes a "iPartId" param to specify the
|
|
// part and a "iStateId" to specify the state of the part.
|
|
// "iStateId=0" refers to the root part. "iPartId" = "0" refers to
|
|
// the root class.
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// Each method also take a "iPropId" param because multiple instances of
|
|
// the same primitive type can be defined in the theme schema.
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeColor() - Get the value for the specified COLOR property
|
|
//
|
|
// hTheme - theme data handle
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to get the value for
|
|
// pColor - receives the value of the property
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeColor: function(hTheme: HTHEME; iPartId, iStateId, iPropId: Integer; var pColor: COLORREF): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeColor}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeMetric() - Get the value for the specified metric/size
|
|
// property
|
|
//
|
|
// hTheme - theme data handle
|
|
// hdc - (optional) hdc to be drawn into (DPI scaling)
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to get the value for
|
|
// piVal - receives the value of the property
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeMetric: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId, iPropId: Integer;
|
|
var piVal: Integer): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeMetric}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeString() - Get the value for the specified string property
|
|
//
|
|
// hTheme - theme data handle
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to get the value for
|
|
// pszBuff - receives the string property value
|
|
// cchMaxBuffChars - max. number of chars allowed in pszBuff
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeString: function(hTheme: HTHEME; iPartId, iStateId, iPropId: Integer; pszBuff: LPWSTR;
|
|
cchMaxBuffChars: Integer): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeString}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeBool() - Get the value for the specified BOOL property
|
|
//
|
|
// hTheme - theme data handle
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to get the value for
|
|
// pfVal - receives the value of the property
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeBool: function(hTheme: HTHEME; iPartId, iStateId, iPropId: Integer; var pfVal: BOOL): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeBool}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeInt() - Get the value for the specified int property
|
|
//
|
|
// hTheme - theme data handle
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to get the value for
|
|
// piVal - receives the value of the property
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeInt: function(hTheme: HTHEME; iPartId, iStateId, iPropId: Integer; var piVal: Integer): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeInt}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeEnumValue() - Get the value for the specified ENUM property
|
|
//
|
|
// hTheme - theme data handle
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to get the value for
|
|
// piVal - receives the value of the enum (cast to int*)
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeEnumValue: function(hTheme: HTHEME; iPartId, iStateId, iPropId: Integer; var piVal: Integer): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeEnumValue}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemePosition() - Get the value for the specified position
|
|
// property
|
|
//
|
|
// hTheme - theme data handle
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to get the value for
|
|
// pPoint - receives the value of the position property
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemePosition: function(hTheme: HTHEME; iPartId, iStateId, iPropId: Integer;var pPoint: TPoint): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemePosition}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeFont() - Get the value for the specified font property
|
|
//
|
|
// hTheme - theme data handle
|
|
// hdc - (optional) hdc to be drawn to (DPI scaling)
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to get the value for
|
|
// pFont - receives the value of the LOGFONT property
|
|
// (scaled for the current logical screen dpi)
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeFont: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId, iPropId: Integer;
|
|
var pFont: LOGFONT): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeFont}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeRect() - Get the value for the specified RECT property
|
|
//
|
|
// hTheme - theme data handle
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to get the value for
|
|
// pRect - receives the value of the RECT property
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeRect: function(hTheme: HTHEME; iPartId, iStateId, iPropId: Integer; var pRect: TRect): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeRect}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
type
|
|
_MARGINS = record
|
|
cxLeftWidth: Integer; // width of left border that retains its size
|
|
cxRightWidth: Integer; // width of right border that retains its size
|
|
cyTopHeight: Integer; // height of top border that retains its size
|
|
cyBottomHeight: Integer; // height of bottom border that retains its size
|
|
end;
|
|
{$EXTERNALSYM _MARGINS}
|
|
MARGINS = _MARGINS;
|
|
{$EXTERNALSYM MARGINS}
|
|
PMARGINS = ^MARGINS;
|
|
{$EXTERNALSYM PMARGINS}
|
|
TMargins = MARGINS;
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeMargins() - Get the value for the specified MARGINS property
|
|
//
|
|
// hTheme - theme data handle
|
|
// hdc - (optional) hdc to be used for drawing
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to get the value for
|
|
// prc - RECT for area to be drawn into
|
|
// pMargins - receives the value of the MARGINS property
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeMargins: function(hTheme: HTHEME; hdc: HDC; iPartId, iStateId, iPropId: Integer; prc: PRECT;
|
|
var pMargins: MARGINS): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeMargins}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
const
|
|
MAX_INTLIST_COUNT = 10;
|
|
{$EXTERNALSYM MAX_INTLIST_COUNT}
|
|
|
|
type
|
|
_INTLIST = record
|
|
iValueCount: Integer; // number of values in iValues
|
|
iValues: array [0..MAX_INTLIST_COUNT - 1] of Integer;
|
|
end;
|
|
{$EXTERNALSYM _INTLIST}
|
|
INTLIST = _INTLIST;
|
|
{$EXTERNALSYM INTLIST}
|
|
PINTLIST = ^INTLIST;
|
|
{$EXTERNALSYM PINTLIST}
|
|
TIntList = INTLIST;
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeIntList() - Get the value for the specified INTLIST struct
|
|
//
|
|
// hTheme - theme data handle
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to get the value for
|
|
// pIntList - receives the value of the INTLIST property
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeIntList: function(hTheme: HTHEME; iPartId, iStateId, iPropId: Integer; var pIntList: INTLIST): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeIntList}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
type
|
|
PROPERTYORIGIN = (
|
|
PO_STATE, // property was found in the state section
|
|
PO_PART, // property was found in the part section
|
|
PO_CLASS, // property was found in the class section
|
|
PO_GLOBAL, // property was found in [globals] section
|
|
PO_NOTFOUND); // property was not found
|
|
{$EXTERNALSYM PROPERTYORIGIN}
|
|
TPropertyOrigin = PROPERTYORIGIN;
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemePropertyOrigin()
|
|
// - searches for the specified theme property
|
|
// and sets "pOrigin" to indicate where it was
|
|
// found (or not found)
|
|
//
|
|
// hTheme - theme data handle
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to search for
|
|
// pOrigin - receives the value of the property origin
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemePropertyOrigin: function(hTheme: HTHEME; iPartId, iStateId, iPropId: Integer;
|
|
var pOrigin: PROPERTYORIGIN): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemePropertyOrigin}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// SetWindowTheme()
|
|
// - redirects an existing Window to use a different
|
|
// section of the current theme information than its
|
|
// class normally asks for.
|
|
//
|
|
// hwnd - the handle of the window (cannot be NULL)
|
|
//
|
|
// pszSubAppName - app (group) name to use in place of the calling
|
|
// app's name. If NULL, the actual calling app
|
|
// name will be used.
|
|
//
|
|
// pszSubIdList - semicolon separated list of class Id names to
|
|
// use in place of actual list passed by the
|
|
// window's class. if NULL, the id list from the
|
|
// calling class is used.
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// The Theme Manager will remember the "pszSubAppName" and the
|
|
// "pszSubIdList" associations thru the lifetime of the window (even
|
|
// if themes are subsequently changed). The window is sent a
|
|
// "WM_THEMECHANGED" msg at the end of this call, so that the new
|
|
// theme can be found and applied.
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// When "pszSubAppName" or "pszSubIdList" are NULL, the Theme Manager
|
|
// removes the previously remember association. To turn off theme-ing for
|
|
// the specified window, you can pass an empty string (L"") so it
|
|
// won't match any section entries.
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
SetWindowTheme: function(hwnd: HWND; pszSubAppName: LPCWSTR; pszSubIdList: LPCWSTR): HRESULT; stdcall;
|
|
{$EXTERNALSYM SetWindowTheme}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeFilename() - Get the value for the specified FILENAME property.
|
|
//
|
|
// hTheme - theme data handle
|
|
// iPartId - part number
|
|
// iStateId - state number of part
|
|
// iPropId - the property number to search for
|
|
// pszThemeFileName - output buffer to receive the filename
|
|
// cchMaxBuffChars - the size of the return buffer, in chars
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeFilename: function(hTheme: HTHEME; iPartId, iStateId, iPropId: Integer; pszThemeFileName: LPWSTR;
|
|
cchMaxBuffChars: Integer): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeFilename}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeSysColor() - Get the value of the specified System color.
|
|
//
|
|
// hTheme - the theme data handle. if non-NULL, will return
|
|
// color from [SysMetrics] section of theme.
|
|
// if NULL, will return the global system color.
|
|
//
|
|
// iColorId - the system color index defined in winuser.h
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeSysColor: function(hTheme: HTHEME; iColorId: Integer): COLORREF; stdcall;
|
|
{$EXTERNALSYM GetThemeSysColor}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeSysColorBrush()
|
|
// - Get the brush for the specified System color.
|
|
//
|
|
// hTheme - the theme data handle. if non-NULL, will return
|
|
// brush matching color from [SysMetrics] section of
|
|
// theme. if NULL, will return the brush matching
|
|
// global system color.
|
|
//
|
|
// iColorId - the system color index defined in winuser.h
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeSysColorBrush: function(hTheme: HTHEME; iColorId: Integer): HBRUSH; stdcall;
|
|
{$EXTERNALSYM GetThemeSysColorBrush}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeSysBool() - Get the boolean value of specified System metric.
|
|
//
|
|
// hTheme - the theme data handle. if non-NULL, will return
|
|
// BOOL from [SysMetrics] section of theme.
|
|
// if NULL, will return the specified system boolean.
|
|
//
|
|
// iBoolId - the TMT_XXX BOOL number (first BOOL
|
|
// is TMT_FLATMENUS)
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeSysBool: function(hTheme: HTHEME; iBoolId: Integer): BOOL; stdcall;
|
|
{$EXTERNALSYM GetThemeSysBool}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeSysSize() - Get the value of the specified System size metric.
|
|
// (scaled for the current logical screen dpi)
|
|
//
|
|
// hTheme - the theme data handle. if non-NULL, will return
|
|
// size from [SysMetrics] section of theme.
|
|
// if NULL, will return the global system metric.
|
|
//
|
|
// iSizeId - the following values are supported when
|
|
// hTheme is non-NULL:
|
|
//
|
|
// SM_CXBORDER (border width)
|
|
// SM_CXVSCROLL (scrollbar width)
|
|
// SM_CYHSCROLL (scrollbar height)
|
|
// SM_CXSIZE (caption width)
|
|
// SM_CYSIZE (caption height)
|
|
// SM_CXSMSIZE (small caption width)
|
|
// SM_CYSMSIZE (small caption height)
|
|
// SM_CXMENUSIZE (menubar width)
|
|
// SM_CYMENUSIZE (menubar height)
|
|
//
|
|
// when hTheme is NULL, iSizeId is passed directly
|
|
// to the GetSystemMetrics() function
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeSysSize: function(hTheme: HTHEME; iSizeId: Integer): Integer; stdcall;
|
|
{$EXTERNALSYM GetThemeSysSize}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeSysFont() - Get the LOGFONT for the specified System font.
|
|
//
|
|
// hTheme - the theme data handle. if non-NULL, will return
|
|
// font from [SysMetrics] section of theme.
|
|
// if NULL, will return the specified system font.
|
|
//
|
|
// iFontId - the TMT_XXX font number (first font
|
|
// is TMT_CAPTIONFONT)
|
|
//
|
|
// plf - ptr to LOGFONT to receive the font value.
|
|
// (scaled for the current logical screen dpi)
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeSysFont: function(hTheme: HTHEME; iFontId: Integer; var plf: LOGFONT): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeSysFont}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeSysString() - Get the value of specified System string metric.
|
|
//
|
|
// hTheme - the theme data handle (required)
|
|
//
|
|
// iStringId - must be one of the following values:
|
|
//
|
|
// TMT_CSSNAME
|
|
// TMT_XMLNAME
|
|
//
|
|
// pszStringBuff - the buffer to receive the string value
|
|
//
|
|
// cchMaxStringChars - max. number of chars that pszStringBuff can hold
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeSysString: function(hTheme: HTHEME; iStringId: Integer; pszStringBuff: LPWSTR;
|
|
cchMaxStringChars: Integer): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeSysString}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeSysInt() - Get the value of specified System int.
|
|
//
|
|
// hTheme - the theme data handle (required)
|
|
//
|
|
// iIntId - must be one of the following values:
|
|
//
|
|
// TMT_DPIX
|
|
// TMT_DPIY
|
|
// TMT_MINCOLORDEPTH
|
|
//
|
|
// piValue - ptr to int to receive value
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeSysInt: function(hTheme: HTHEME; iIntId: Integer; var piValue: Integer): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeSysInt}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// IsThemeActive() - can be used to test if a system theme is active
|
|
// for the current user session.
|
|
//
|
|
// use the API "IsAppThemed()" to test if a theme is
|
|
// active for the calling process.
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
IsThemeActive: function: BOOL; stdcall;
|
|
{$EXTERNALSYM IsThemeActive}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// IsAppThemed() - returns TRUE if a theme is active and available to
|
|
// the current process
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
IsAppThemed: function: BOOL; stdcall;
|
|
{$EXTERNALSYM IsAppThemed}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetWindowTheme() - if window is themed, returns its most recent
|
|
// HTHEME from OpenThemeData() - otherwise, returns
|
|
// NULL.
|
|
//
|
|
// hwnd - the window to get the HTHEME of
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetWindowTheme: function(hwnd: HWND): HTHEME; stdcall;
|
|
{$EXTERNALSYM GetWindowTheme}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// EnableThemeDialogTexture()
|
|
//
|
|
// - Enables/disables dialog background theme. This method can be used to
|
|
// tailor dialog compatibility with child windows and controls that
|
|
// may or may not coordinate the rendering of their client area backgrounds
|
|
// with that of their parent dialog in a manner that supports seamless
|
|
// background texturing.
|
|
//
|
|
// hdlg - the window handle of the target dialog
|
|
// dwFlags - ETDT_ENABLE to enable the theme-defined dialog background texturing,
|
|
// ETDT_DISABLE to disable background texturing,
|
|
// ETDT_ENABLETAB to enable the theme-defined background
|
|
// texturing using the Tab texture
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
const
|
|
ETDT_DISABLE = $00000001;
|
|
{$EXTERNALSYM ETDT_DISABLE}
|
|
ETDT_ENABLE = $00000002;
|
|
{$EXTERNALSYM ETDT_ENABLE}
|
|
ETDT_USETABTEXTURE = $00000004;
|
|
{$EXTERNALSYM ETDT_USETABTEXTURE}
|
|
ETDT_ENABLETAB = (ETDT_ENABLE or ETDT_USETABTEXTURE);
|
|
{$EXTERNALSYM ETDT_ENABLETAB}
|
|
|
|
var
|
|
EnableThemeDialogTexture: function(hwnd: HWND; dwFlags: DWORD): HRESULT; stdcall;
|
|
{$EXTERNALSYM EnableThemeDialogTexture}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// IsThemeDialogTextureEnabled()
|
|
//
|
|
// - Reports whether the dialog supports background texturing.
|
|
//
|
|
// hdlg - the window handle of the target dialog
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
IsThemeDialogTextureEnabled: function(hwnd: HWND): BOOL; stdcall;
|
|
{$EXTERNALSYM IsThemeDialogTextureEnabled}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
//---- flags to control theming within an app ----
|
|
|
|
const
|
|
STAP_ALLOW_NONCLIENT = (1 shl 0);
|
|
{$EXTERNALSYM STAP_ALLOW_NONCLIENT}
|
|
STAP_ALLOW_CONTROLS = (1 shl 1);
|
|
{$EXTERNALSYM STAP_ALLOW_CONTROLS}
|
|
STAP_ALLOW_WEBCONTENT = (1 shl 2);
|
|
{$EXTERNALSYM STAP_ALLOW_WEBCONTENT}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeAppProperties()
|
|
// - returns the app property flags that control theming
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetThemeAppProperties: function: DWORD; stdcall;
|
|
{$EXTERNALSYM GetThemeAppProperties}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// SetThemeAppProperties()
|
|
// - sets the flags that control theming within the app
|
|
//
|
|
// dwFlags - the flag values to be set
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
SetThemeAppProperties: procedure(dwFlags: DWORD); stdcall;
|
|
{$EXTERNALSYM SetThemeAppProperties}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetCurrentThemeName()
|
|
// - Get the name of the current theme in-use.
|
|
// Optionally, return the ColorScheme name and the
|
|
// Size name of the theme.
|
|
//
|
|
// pszThemeFileName - receives the theme path & filename
|
|
// cchMaxNameChars - max chars allowed in pszNameBuff
|
|
//
|
|
// pszColorBuff - (optional) receives the canonical color scheme name
|
|
// (not the display name)
|
|
// cchMaxColorChars - max chars allowed in pszColorBuff
|
|
//
|
|
// pszSizeBuff - (optional) receives the canonical size name
|
|
// (not the display name)
|
|
// cchMaxSizeChars - max chars allowed in pszSizeBuff
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
GetCurrentThemeName: function(pszThemeFileName: LPWSTR; cchMaxNameChars: Integer; pszColorBuff: LPWSTR;
|
|
cchMaxColorChars: Integer; pszSizeBuff: LPWSTR; cchMaxSizeChars: Integer): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetCurrentThemeName}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// GetThemeDocumentationProperty()
|
|
// - Get the value for the specified property name from
|
|
// the [documentation] section of the themes.ini file
|
|
// for the specified theme. If the property has been
|
|
// localized in the theme files string table, the
|
|
// localized version of the property value is returned.
|
|
//
|
|
// pszThemeFileName - filename of the theme file to query
|
|
// pszPropertyName - name of the string property to retreive a value for
|
|
// pszValueBuff - receives the property string value
|
|
// cchMaxValChars - max chars allowed in pszValueBuff
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
const
|
|
SZ_THDOCPROP_DISPLAYNAME = WideString('DisplayName');
|
|
{$EXTERNALSYM SZ_THDOCPROP_DISPLAYNAME}
|
|
SZ_THDOCPROP_CANONICALNAME = WideString('ThemeName');
|
|
{$EXTERNALSYM SZ_THDOCPROP_CANONICALNAME}
|
|
SZ_THDOCPROP_TOOLTIP = WideString('ToolTip');
|
|
{$EXTERNALSYM SZ_THDOCPROP_TOOLTIP}
|
|
SZ_THDOCPROP_AUTHOR = WideString('author');
|
|
{$EXTERNALSYM SZ_THDOCPROP_AUTHOR}
|
|
|
|
var
|
|
GetThemeDocumentationProperty: function(pszThemeName, pszPropertyName: LPCWSTR; pszValueBuff: LPWSTR;
|
|
cchMaxValChars: Integer): HRESULT; stdcall;
|
|
{$EXTERNALSYM GetThemeDocumentationProperty}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// Theme API Error Handling
|
|
//
|
|
// All functions in the Theme API not returning an HRESULT (THEMEAPI_)
|
|
// use the WIN32 function "SetLastError()" to record any call failures.
|
|
//
|
|
// To retreive the error code of the last failure on the
|
|
// current thread for these type of API's, use the WIN32 function
|
|
// "GetLastError()".
|
|
//
|
|
// All Theme API error codes (HRESULT's and GetLastError() values)
|
|
// should be normal win32 errors which can be formatted into
|
|
// strings using the Win32 API FormatMessage().
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// DrawThemeParentBackground()
|
|
// - used by partially-transparent or alpha-blended
|
|
// child controls to draw the part of their parent
|
|
// that they appear in front of.
|
|
//
|
|
// hwnd - handle of the child control
|
|
// hdc - hdc of the child control
|
|
// prc - (optional) rect that defines the area to be
|
|
// drawn (CHILD coordinates)
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
DrawThemeParentBackground: function(hwnd: HWND; hdc: HDC; prc: PRECT): HRESULT; stdcall;
|
|
{$EXTERNALSYM DrawThemeParentBackground}
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
// EnableTheming() - enables or disables themeing for the current user
|
|
// in the current and future sessions.
|
|
//
|
|
// fEnable - if FALSE, disable theming & turn themes off.
|
|
// - if TRUE, enable themeing and, if user previously
|
|
// had a theme active, make it active now.
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
var
|
|
EnableTheming: function(fEnable: BOOL): HRESULT; stdcall;
|
|
{$EXTERNALSYM EnableTheming}
|
|
|
|
implementation
|
|
|
|
uses
|
|
SyncObjs;
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
const
|
|
themelib = 'uxtheme.dll';
|
|
|
|
var
|
|
ThemeLibrary: THandle;
|
|
ReferenceCount: Integer; // We have to keep track of several load/unload calls.
|
|
Lock: TCriticalSection;
|
|
|
|
procedure FreeThemeLibrary;
|
|
begin
|
|
Lock.Enter;
|
|
try
|
|
if ReferenceCount > 0 then
|
|
Dec(ReferenceCount);
|
|
|
|
if (ThemeLibrary <> 0) and (ReferenceCount = 0) then
|
|
begin
|
|
FreeLibrary(ThemeLibrary);
|
|
ThemeLibrary := 0;
|
|
|
|
OpenThemeData := nil;
|
|
CloseThemeData := nil;
|
|
DrawThemeBackground := nil;
|
|
DrawThemeText := nil;
|
|
GetThemeBackgroundContentRect := nil;
|
|
GetThemeBackgroundExtent := nil;
|
|
GetThemePartSize := nil;
|
|
GetThemeTextExtent := nil;
|
|
GetThemeTextMetrics := nil;
|
|
GetThemeBackgroundRegion := nil;
|
|
HitTestThemeBackground := nil;
|
|
DrawThemeEdge := nil;
|
|
DrawThemeIcon := nil;
|
|
IsThemePartDefined := nil;
|
|
IsThemeBackgroundPartiallyTransparent := nil;
|
|
GetThemeColor := nil;
|
|
GetThemeMetric := nil;
|
|
GetThemeString := nil;
|
|
GetThemeBool := nil;
|
|
GetThemeInt := nil;
|
|
GetThemeEnumValue := nil;
|
|
GetThemePosition := nil;
|
|
GetThemeFont := nil;
|
|
GetThemeRect := nil;
|
|
GetThemeMargins := nil;
|
|
GetThemeIntList := nil;
|
|
GetThemePropertyOrigin := nil;
|
|
SetWindowTheme := nil;
|
|
GetThemeFilename := nil;
|
|
GetThemeSysColor := nil;
|
|
GetThemeSysColorBrush := nil;
|
|
GetThemeSysBool := nil;
|
|
GetThemeSysSize := nil;
|
|
GetThemeSysFont := nil;
|
|
GetThemeSysString := nil;
|
|
GetThemeSysInt := nil;
|
|
IsThemeActive := nil;
|
|
IsAppThemed := nil;
|
|
GetWindowTheme := nil;
|
|
EnableThemeDialogTexture := nil;
|
|
IsThemeDialogTextureEnabled := nil;
|
|
GetThemeAppProperties := nil;
|
|
SetThemeAppProperties := nil;
|
|
GetCurrentThemeName := nil;
|
|
GetThemeDocumentationProperty := nil;
|
|
DrawThemeParentBackground := nil;
|
|
EnableTheming := nil;
|
|
end;
|
|
finally
|
|
Lock.Leave;
|
|
end;
|
|
end;
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
function InitThemeLibrary: Boolean;
|
|
|
|
begin
|
|
Lock.Enter;
|
|
try
|
|
Inc(ReferenceCount);
|
|
|
|
if ThemeLibrary = 0 then
|
|
begin
|
|
ThemeLibrary := LoadLibrary(themelib);
|
|
if ThemeLibrary > 0 then
|
|
begin
|
|
Pointer(OpenThemeData) := GetProcAddress(ThemeLibrary, 'OpenThemeData');
|
|
Pointer(CloseThemeData) := GetProcAddress(ThemeLibrary, 'CloseThemeData');
|
|
Pointer(DrawThemeBackground) := GetProcAddress(ThemeLibrary, 'DrawThemeBackground');
|
|
Pointer(DrawThemeText) := GetProcAddress(ThemeLibrary, 'DrawThemeText');
|
|
Pointer(GetThemeBackgroundContentRect) := GetProcAddress(ThemeLibrary, 'GetThemeBackgroundContentRect');
|
|
Pointer(GetThemeBackgroundExtent) := GetProcAddress(ThemeLibrary, 'GetThemeBackgroundExtent');
|
|
Pointer(GetThemePartSize) := GetProcAddress(ThemeLibrary, 'GetThemePartSize');
|
|
Pointer(GetThemeTextExtent) := GetProcAddress(ThemeLibrary, 'GetThemeTextExtent');
|
|
Pointer(GetThemeTextMetrics) := GetProcAddress(ThemeLibrary, 'GetThemeTextMetrics');
|
|
Pointer(GetThemeBackgroundRegion) := GetProcAddress(ThemeLibrary, 'GetThemeBackgroundRegion');
|
|
Pointer(HitTestThemeBackground) := GetProcAddress(ThemeLibrary, 'HitTestThemeBackground');
|
|
Pointer(DrawThemeEdge) := GetProcAddress(ThemeLibrary, 'DrawThemeEdge');
|
|
Pointer(DrawThemeIcon) := GetProcAddress(ThemeLibrary, 'DrawThemeIcon');
|
|
Pointer(IsThemePartDefined) := GetProcAddress(ThemeLibrary, 'IsThemePartDefined');
|
|
Pointer(IsThemeBackgroundPartiallyTransparent) := GetProcAddress(ThemeLibrary, 'IsThemeBackgroundPartiallyTransparent');
|
|
Pointer(GetThemeColor) := GetProcAddress(ThemeLibrary, 'GetThemeColor');
|
|
Pointer(GetThemeMetric) := GetProcAddress(ThemeLibrary, 'GetThemeMetric');
|
|
Pointer(GetThemeString) := GetProcAddress(ThemeLibrary, 'GetThemeString');
|
|
Pointer(GetThemeBool) := GetProcAddress(ThemeLibrary, 'GetThemeBool');
|
|
Pointer(GetThemeInt) := GetProcAddress(ThemeLibrary, 'GetThemeInt');
|
|
Pointer(GetThemeEnumValue) := GetProcAddress(ThemeLibrary, 'GetThemeEnumValue');
|
|
Pointer(GetThemePosition) := GetProcAddress(ThemeLibrary, 'GetThemePosition');
|
|
Pointer(GetThemeFont) := GetProcAddress(ThemeLibrary, 'GetThemeFont');
|
|
Pointer(GetThemeRect) := GetProcAddress(ThemeLibrary, 'GetThemeRect');
|
|
Pointer(GetThemeMargins) := GetProcAddress(ThemeLibrary, 'GetThemeMargins');
|
|
Pointer(GetThemeIntList) := GetProcAddress(ThemeLibrary, 'GetThemeIntList');
|
|
Pointer(GetThemePropertyOrigin) := GetProcAddress(ThemeLibrary, 'GetThemePropertyOrigin');
|
|
Pointer(SetWindowTheme) := GetProcAddress(ThemeLibrary, 'SetWindowTheme');
|
|
Pointer(GetThemeFilename) := GetProcAddress(ThemeLibrary, 'GetThemeFilename');
|
|
Pointer(GetThemeSysColor) := GetProcAddress(ThemeLibrary, 'GetThemeSysColor');
|
|
Pointer(GetThemeSysColorBrush) := GetProcAddress(ThemeLibrary, 'GetThemeSysColorBrush');
|
|
Pointer(GetThemeSysBool) := GetProcAddress(ThemeLibrary, 'GetThemeSysBool');
|
|
Pointer(GetThemeSysSize) := GetProcAddress(ThemeLibrary, 'GetThemeSysSize');
|
|
Pointer(GetThemeSysFont) := GetProcAddress(ThemeLibrary, 'GetThemeSysFont');
|
|
Pointer(GetThemeSysString) := GetProcAddress(ThemeLibrary, 'GetThemeSysString');
|
|
Pointer(GetThemeSysInt) := GetProcAddress(ThemeLibrary, 'GetThemeSysInt');
|
|
Pointer(IsThemeActive) := GetProcAddress(ThemeLibrary, 'IsThemeActive');
|
|
Pointer(IsAppThemed) := GetProcAddress(ThemeLibrary, 'IsAppThemed');
|
|
Pointer(GetWindowTheme) := GetProcAddress(ThemeLibrary, 'GetWindowTheme');
|
|
Pointer(EnableThemeDialogTexture) := GetProcAddress(ThemeLibrary, 'EnableThemeDialogTexture');
|
|
Pointer(IsThemeDialogTextureEnabled) := GetProcAddress(ThemeLibrary, 'IsThemeDialogTextureEnabled');
|
|
Pointer(GetThemeAppProperties) := GetProcAddress(ThemeLibrary, 'GetThemeAppProperties');
|
|
Pointer(SetThemeAppProperties) := GetProcAddress(ThemeLibrary, 'SetThemeAppProperties');
|
|
Pointer(GetCurrentThemeName) := GetProcAddress(ThemeLibrary, 'GetCurrentThemeName');
|
|
Pointer(GetThemeDocumentationProperty) := GetProcAddress(ThemeLibrary, 'GetThemeDocumentationProperty');
|
|
Pointer(DrawThemeParentBackground) := GetProcAddress(ThemeLibrary, 'DrawThemeParentBackground');
|
|
Pointer(EnableTheming) := GetProcAddress(ThemeLibrary, 'EnableTheming');
|
|
end;
|
|
end;
|
|
Result := ThemeLibrary > 0;
|
|
finally
|
|
Lock.Leave;
|
|
end;
|
|
end;
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
function UseThemes: Boolean;
|
|
begin
|
|
Result := ThemeLibrary > 0;
|
|
if Result then
|
|
Result := IsAppThemed() and IsThemeActive();
|
|
end;
|
|
|
|
//----------------------------------------------------------------------------------------------------------------------
|
|
|
|
initialization
|
|
ReferenceCount := 0;
|
|
Lock := TCriticalSection.Create;
|
|
finalization
|
|
while ReferenceCount > 0 do
|
|
FreeThemeLibrary;
|
|
Lock.Free;
|
|
end.
|
|
|